You don't need to do this -- you can use Compiler.ThisLine() instead, passing it to your assertion checker as needs. On May 3, 2008, at 10:28 AM, Jay Krell wrote: > CVSROOT: /usr/cvs > Changes by: jkrell at birch. 08/05/03 10:28:21 > > Modified files: > cm3/m3-sys/m3tests/src/p1/p130/: Main.m3 > > Log message: > inline asserts so the line number is useful